2a thread class right-hand 0.312" thread length headless (setscrew) head style 0.047" hole diameter 32 thread quantity per inch passivate surface treated unc thread series
3a thread class right-hand 0.375" thread length round extended washer head style 32 thread quantity per inch cadmium or cadmium screw surface treated unc thread series
3a nut thread thread class right-hand nut thread 0.490" stud thread thread length 1.115" overall length 20 stud thread thread quantity per inch stud end chamfered 45.0 deg by 0.030 in. min 0.060 in.max deep, nut end chamfered 45.0 deg by 0.020 in.min 0.050 in.max deep cadmium surface treated unc stud thread thread series
3a thread class right-hand 0.562" thread length hexagon head style 1.938" grip length 16 thread quantity per inch cadmium surface treated unf thread series
2a thread class right-hand 0.281" thread length flat chamfer head style 40 thread quantity per inch top of head chamfered 1/32 in. by 45 deg passivate surface treated unc thread series
3a thread class right-hand 0.885" thread length double hexagon extended washer head style 0.062" hole diameter 0.015" grip length 24 thread quantity per inch navy special project passivate surface treated unf thread series
3a thread class right-hand 0.344" thread length flat countersunk head style 28 thread quantity per inch navy special project cadmium screw surface treated unf thread series
